| New York/Niagara gorge | Outcrop | _ | Dolomite | 0.2 - 6.7 | _ | _ | 24.0 | _ | _ | [13] [40] |
| New York/Rochester | Sewer system | _ | Dolomite | _ | _ | _ | 50.7 - 91.7 | _ | _ | [42] |
| New York/Somerset | Outcrop | _ | Sandstone | 8.5 | _ | _ | 17.0 | _ | _ | [13] [43] [44] |
| New York/ Sterling | Outcrop | _ | Sandstone | 10.1 - 32.3 | _ | _ | 33.0 | _ | _ | [13] [43] [44] |
| Ohio | Boring | _ | Shale | 10.3 - 18.6 | _ | _ | 13.0 - 28.0 | _ | _ | [13] |
| Ohio/Barberton | Mine | _ | Limestone | 701.0 | _ | _ | 55.0 - 67.0 | _ | _ | [21] |
| Ohio/Bellefountaine | Quarry | Gasport | Limestone/ Dolomite | 0.2 - 1.0 | _ | _ | 34.8 | _ | _ | [13] |
| Ohio/Falls Township | Oil Field - Deep boring | _ | Sandstone | 808.0 | _ | _ | 10.0 | _ | _ | [17] |
| Ohio/Hocking State Forest | Outcrop | _ | Sandstone | 0.9 - 1.2 | _ | _ | 7.8 | _ | _ | [14] |
| Ohio/Kenton | Quarry | _ | Limestone/ Dolomite | 0.2 - 1.0 | _ | _ | 34.8 | _ | _ | [13] |
| Ohio/Lima | Quarry | _ | Limestone/ Dolomite | 0.2 - 1.0 | _ | _ | 34.8 | _ | _ | [13] |
| Ohio/ Sydney | Quarry | _ | Limestone/ Dolomite | 0.2 - 1.0 | _ | _ | 34.8 | _ | _ | [13] |
| Wisconsin/ Montello | Deep Boring | _ | Granite | 75.0 - 188.1 | _ | _ | 52.0 - 56.0 | _ | _ | [46] |